"determine sample size" is grammatically correct and can be used in written English.
It is commonly used in research or statistical contexts to refer to the process of deciding the number of participants or data points needed for a study. Example: The researchers needed to determine the sample size for their study in order to accurately represent the population and ensure statistical significance.
G*Power (Faul, Erdfelder, Buchner, & Lang, 2009) was used to determine sample size.
In order to determine sample size, we used the primary outcome of the CCQ score.
A priori power analysis was performed by using an online calculator (http://statpages.org/index.html#Power) to determine sample size needed for the binary logistic regression analysis.
We show how those correlations can be reduced using regression adjustments and used to determine sample size for future school-based smoking prevention studies.
Cluster sampling methodology (Bennett et al. 1991; Thrusfield 2007) was used to determine sample size, fixed to fulfil the trypanosomiasis survey assumptions in March and human brucellosis survey assumptions in June to October.
In this study, an economic design model of DS is developed based on Yang and Hancock's assumption of correlation and Lorenzen and Vance's cost model to determine sample size, sampling interval, and coefficients of control limits and warring limits.
The minimal important difference also plays an important role to determine sample sizes of trials.
Once established, a MCID is a useful benchmark for clinical researchers to assess effectiveness of an intervention and determine sample sizes for future clinical trials.
Methods are available to determine sample sizes for single- and combination-agent studies and to allow for incomplete data sets (Tan et al, 2005).
Numerous statistical tools are available to determine sample sizes required for different levels of significance, for example Quanto [ 22, 27] and Genetic Power Calculator [ 28, 29].
Our method can be viewed as a type of sample size determination (SSD) method that determines sample size for study design.
